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The HM Digital COM-300 allows you to keep track of the water quality used in gardening in a more portable package.
Designed for hydroponic growers, the COM-300 allows you to track pH, EC, TDS, salinity, and temperature levels in different applications so that your plants grow on the best medium.
Non-hydroponic growers will benefit from the COM-300, as you can use this device in laboratory applications.
The COM-300 allows you to test water samples used in different applications, such as hydroponics, water treatment, and laboratory usage.
The COM-300 features a large LCD that makes checking the meter easier, despite its compact form factor.
To help you save on power, the COM-300 shuts down after being idle.
You can run the COM-300 with a pair of AAA batteries.
| pH Range: | 0 – 14 pH |
| EC Range: | 0 – 9990 µS; 0 – 9.99 mS |
| TDS Range: | 0 – 8560 ppm (0.7 Scale); 0 – 5000 ppm (0.5 Scale) |
| Temperature Range: | 0-55 °C; 32-130°F |
| pH: | 0.1pH |
| EC | 0 – 999 : 1µS 1000 – 9990 : µS 0- 9.99 mS :0.01 mS |
| TDS | 0 – 999 : 1ppm 1000 – 9990: 10 ppm |
| Temperature | 0.1 °C/°F |
| Accuracy: | +/- 2% |
| EC to TDS Conversion Factor: | Non-linear conversions for KCl, 442TM or NaCl solutions, selected by the user. |
| Probe: | Detachable platinum electrodes & pH glass sensor with reference tube electrodes |
| Housing: IP-67 | Waterproof (submersible; floats) |
| Power source: | 2 x Triple A (AAA) included |
| Dimensions: | 18.5 x 3.4 x 3.4 cm (7.3 x 1.3 x 1.3 inches) |
| Weight: | 101.5g (3.6 oz) |
